/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.camel.builder;
import java.util.HashMap;
import java.util.Map;
import org.apache.camel.CamelContext;
import org.apache.camel.Exchange;
import org.apache.camel.ExchangePattern;
import org.apache.camel.Message;
import org.apache.camel.impl.DefaultExchange;
/**
* Builder to create {@link Exchange} and add headers and set body on the Exchange {@link Message}.
* <p/>
* Use the {@link #build()} method when done setting up the exchange.
*/
public final class ExchangeBuilder {
private CamelContext context;
private ExchangePattern pattern;
private Object body;
private Map<String, Object> headers = new HashMap<String, Object>();
private Map<String, Object> properties = new HashMap<String, Object>();
public ExchangeBuilder(CamelContext context) {
this.context = context;
}
/**
* Create the exchange by setting the camel context
*
* @param context the camel context
* @return exchange builder
*/
public static ExchangeBuilder anExchange(CamelContext context) {
return new ExchangeBuilder(context);
}
/**
* Set the in message body on the exchange
*
* @param body the body
* @return exchange builder
*/
public ExchangeBuilder withBody(Object body) {
this.body = body;
return this;
}
/**
* Set the message header of the in message on the exchange
*
* @param key the key of the header
* @param value the value of the header
* @return exchange builder
*/
public ExchangeBuilder withHeader(String key, Object value) {
headers.put(key, value);
return this;
}
/**
* Set the message exchange pattern on the exchange
*
* @param pattern exchange pattern
* @return exchange builder
*/
public ExchangeBuilder withPattern(ExchangePattern pattern) {
this.pattern = pattern;
return this;
}
/**
* Set the exchange property
*
* @param key the key of the exchange property
* @param value the value of the exchange property
* @return exchange builder
*/
public ExchangeBuilder withProperty(String key, Object value) {
properties.put(key, value);
return this;
}
/**
* Build up the exchange from the exchange builder
*
* @return exchange
*/
public Exchange build() {
Exchange exchange = new DefaultExchange(context);
Message message = exchange.getIn();
message.setBody(body);
if (headers.size() > 0) {
message.setHeaders(headers);
}
// setup the properties on the exchange
for (Map.Entry<String, Object> entry : properties.entrySet()) {
exchange.setProperty(entry.getKey(), entry.getValue());
}
if (pattern != null) {
exchange.setPattern(pattern);
}
return exchange;
}
}